Sending requests to fetch information to https://URL

Hi All,

I am new to using http adapters in SI. I am trying to sending a request to a URL that runs on only secured protocol i.e., 'https'. I have tried a lot a lot but not able to establish a connection to the URL.

I have tried using a proxy even but the connection is not established to the URL. Looking for some help from the group members on how to establish connection to a URL using http adapters.

Here is my configuration code:

Code:

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<beans:bean id="httpDemo" class="blog.HTTPDemo" />

<int:channel id="requestChannel" />

<http:outbound-gateway request-channel="requestChannel" reply-channel="httpResponseChannel" auto-startup="true" url="https://login.salesforce.com/services/oauth2/token" />

<int:channel id="httpResponseChannel" />
        <!-- <int:queue capacity="10" />
</int:channel> -->
<int:service-activator input-channel="httpResponseChannel" ref="httpDemo" />

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Thanks in Advance!!!

Regards,
Avinash Munaga.

You need to look at the logs and/or what's going on "on the wire"; https just "works" because it is handled by the JVM.

For example, if you look at the basic/http sample here

https://github.com/SpringSource/spri...ration-samples

just change the URL to an https one and you'll see it just works.

Code:

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<int-http:outbound-gateway request-channel="requestChannel"
                                          url="https://jira.springframework.org/"
                                          http-method="GET"
                                          expected-response-type="java.lang.String"/>

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If you run a line monitor, like wireshark you can see all the SSL/TLS handshaking happening.

If you can't figure it out from debug level logs, try running wireshark - you won't be able to read the data, but you should at least see the socket establishment.

Hi Avinash,

are you sure that connection is not established? Do you see error in log? I tried your sample and response is 400: Bad request - which is OK since I don't know required POST/GET params for this URL. But fetching https://accounts.google.com works fine. Btw. how do you send messages to requestChannel?

Hi,

Thanks for the replies.

I am trying to send request like this.

Quote:

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ApplicationContext context = new ClassPathXmlApplicationContext("config-http.xml");
JSONObject json = new JSONObject();
//creating JSON
Message<?> message = MessageBuilder.withPayload(json.toString()).build( );
context.getBean("requestChannel", MessageChannel.class).send(message);

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But, it's not working. Even tried sending request to integration in a different way like this:

Quote:

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ApplicationContext context = new ClassPathXmlApplicationContext("config-http.xml");
JSONObject json = new JSONObject();
//creating JSON
Message<?> message = MessageBuilder.withPayload(json.toString()).build( );
ChannelResolver resolver = new BeanFactoryChannelResolver(context);
MessageChannel channel = resolver.resolveChannelName("requestChannel");
channel.send(message);

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This is the error message while sending request in both the cases.

Quote:

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WARNING: POST request for "https://login.salesforce.com/services/oauth2/token" resulted in 400 (Bad Request); invoking error handler
Exception in thread "main" org.springframework.integration.MessageHandlingExc eption: HTTP request execution failed for URI [https://login.salesforce.com/services/oauth2/token]
at org.springframework.integration.http.outbound.Http RequestExecutingMessageHandler.handleRequestMessag e(HttpRequestExecutingMessageHandler.java:284)
at org.springframework.integration.handler.AbstractRe plyProducingMessageHandler.handleMessageInternal(A bstractReplyProducingMessageHandler.java:97)
at org.springframework.integration.handler.AbstractMe ssageHandler.handleMessage(AbstractMessageHandler. java:73)
at org.springframework.integration.dispatcher.Unicast ingDispatcher.doDispatch(UnicastingDispatcher.java :114)
at org.springframework.integration.dispatcher.Unicast ingDispatcher.dispatch(UnicastingDispatcher.java:1 01)
at org.springframework.integration.channel.AbstractSu bscribableChannel.doSend(AbstractSubscribableChann el.java:61)
at org.springframework.integration.channel.AbstractMe ssageChannel.send(AbstractMessageChannel.java:157)
at org.springframework.integration.channel.AbstractMe ssageChannel.send(AbstractMessageChannel.java:128)
at blog.HTTPDemo.main(HTTPDemo.java:59)
Caused by: org.springframework.web.client.HttpClientErrorExce ption: 400 Bad Request
at org.springframework.web.client.DefaultResponseErro rHandler.handleError(DefaultResponseErrorHandler.j ava:76)
at org.springframework.web.client.RestTemplate.handle ResponseError(RestTemplate.java:486)
at org.springframework.web.client.RestTemplate.doExec ute(RestTemplate.java:443)
at org.springframework.web.client.RestTemplate.execut e(RestTemplate.java:409)
at org.springframework.web.client.RestTemplate.exchan ge(RestTemplate.java:384)
at org.springframework.integration.http.outbound.Http RequestExecutingMessageHandler.handleRequestMessag e(HttpRequestExecutingMessageHandler.java:258)
... 8 more

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How are you guys sending message to the request channel. Could you please share some sample code that work's.

Thanks in Advance!!!

This looks like rather problem during authentication, not connection problem of SI. You should check that all of required authentication parameters are set. Also, while I didn't work with OAuth, I think that you should use POST request:

Code:

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<int-http:outbound-gateway http-method="POST"...

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